   |`:envvar` |Environment variable that can override the config value and system property (before parsing) |
   |`:source` |Source or container (of reference type, e.g. atom/agent/promise etc.) of key/value pairs     |
 
-  ## Lookup function
+  ### Lookup function
 
   ```
   (fn [store key validator description value-parser default-value? default-value not-found-handler])->value

(defn read-config
  "Read config file(s) returning a `java.util.Map` instance.

  ## Options

  | Kwarg           | Type     | Description                                  | Default                         |
  |-----------------|----------|----------------------------------------------|---------------------------------|

(defn write-config
  "Write config to a specified file.

  ### Options

  | Kwarg           | Type     | Description                               | Default                         |
  |-----------------|----------|-------------------------------------------|---------------------------------|
